用物理冶金常用的分析手段对不同取向的K403单晶和多晶材料渗态和高温长时热暴露条件下Al-Cr涂层的组织转变进行分析,研究应力对涂层组织的影响.结果表明,在900℃下,Al-Cr涂层组织稳定性极佳,可经受5000h热暴露.晶体取向对涂层的形成与转变无明显影响,但对σ相的排列与取向有明显作用.此外,应力加速了涂层的增厚和析出相的沉淀与粗化.在1050℃以上,涂层的β→γ转变在1000h内可完成,包括σ,M6C相在内的析出相明显粗化,造成涂层组织严重损伤.
参考文献
| [1] | GOULETTE M J.The future costs less-high temperature materials from an aero-engine perspective[A].Warrendale:TMS,1996:3-8. |
| [2] | SETH B B.Superalloys-the utility gas turbine perspective[A].Warrendale:TMS,2000:3-16. |
| [3] | WALSTON W S.Coating and surface technogogies for turbine airfoils[A].Warrendale:TMS,2004:579-588. |
| [4] | 郑亮,肖程波,唐定中,顾国红,汤鑫.高Cr铸造Ni基高温合金K4648的显微组织[J].中国有色金属学报,2009(04):662-669. |
| [5] | 郑亮,肖程波,唐定中,顾国红,汤鑫.高Cr铸造镍基高温合金K4648凝固行为的研究[J].稀有金属材料与工程,2008(09):1539-1544. |
| [6] | LOVELL C E;LEVINE S R;GRISAFFE S J.Environmental effects and surface protection of high temperature alloy:a review NASA-Lewis programs[A].Maine:ASM,1974:35-55. |
| [7] | KAUFMAN M .Examination of the influence of coatings on thin superalloy sections[NASACR-121115][R].,1972. |
| [8] | CLELLAND J;TAYLOR A F;WORTLEY L.Material and coating developments in support of future marine aero gas turbine for the Royal Navy[A].Maine:ASM,1974:397-432. |
| [9] | HAN Y F;XING Z P;CHATURVEDI M C et al.Oxidation resistance and microstructure of Ni-Cr-Al-Y coating on Ni3 Al based alloy[J].Materials Science and Engineering,1997,A239-240:871-876. |
| [10] | G. W. Goward .Progress in coatings for gas turbine airfoils[J].Surface & Coatings Technology,1998(1/3):73-79. |
| [11] | LEVINE S R .Cyclic furnace and high-velocity oxidation of an aluminide-coated high strength nickel alloy B-1900[NASA TMX-2370][R].,1971. |
| [12] | GOW ARD G W;BOONE D H;GIGGINS C S .Formation and degredation mechanisms of aluminide coating on nickel-base superalloy[J].Transactions ASM,1967,60(02):228-241. |
| [13] | REDDEN T K .Ni-Al coating-base metal interactions in several nickel-base alloys[J].Transactions AIME,1968,242(08):1695-1702. |
| [14] | ZHENG Y;CAI Y;MO L.Formation of Si-containing barrier in A1-Si coatings and its effect on protective capability of superalloy[J].Journal of Mater Eng,1991(01):39-46. |
| [15] | 张春晓,李树索,韩雅芳.防护涂层对Ni3Al基合金IC6AE微观组织和抗腐蚀性能的影响[J].航空材料学报,2006(03):41-46. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%